Experimental study of compression and combustion processes in a very small engine

• Autorzy: Kalina P. , Rusin M. , Jarosinski J.
• Języki publikacji: PL

Abstrakty

EN

The main objective of the present study is a better understanding of the fundamental compression, ignition and combustion processes in a miniature engine. To study these processes in detail a small rapid compression machine was built. The bore diameter and stroke of this machine was D = 6 mm and L = 12 mm, respectively. Stoichiometric propane-air and hydrogen-air mixtures were employed in experiments. The catalyst heated to necessary temperature was used to ignite the mixture. It was found experimentally that the compression process in such engine was isothermal. The serious problem in a rapid compression machine is also dead volume created by crevices. Isothermal compression and dead volume are responsible for very low value of the maximum compression pressure. It was also found that the mixture could not be ignited in a very small volume of the catalytic prechamber (with dimensions ? 2.8 mm × 4.7 mm). Some additional volume in a form of the combustion chamber should be added to make possible ignition and following to it combustion of the mixture. Part of the experiments was carried out on a working model engine of the same piston diameter. Parameters of this model engine were measured at specially designed miniature test-bench. Cylinder pressure and engine performance were determined.

Słowa kluczowe

EN

miniature engine; combustion processes

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2005
• Tom: Vol. 12, No. 1-2
• Strony: 153--161
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Kalina P.

• Department of Piston Engines The Institute of Aviation Aleja Krakowska 110/114 02-256 Warsaw, Poland

autor

Rusin M.

• Department of Piston Engines The Institute of Aviation Aleja Krakowska 110/114 02-256 Warsaw, Poland

autor

Jarosinski J.

• Department of Piston Engines The Institute of Aviation Aleja Krakowska 110/114 02-256 Warsaw, Poland

Bibliografia

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• [4] Sitzki L., Borer K., Wussow S., Schuster E., Maruta K., Ronney P. and Cohen A., “Combustion in Microscale. Heat-Recirculating Burners”, paper AIAA-2001-1087, Thirty-Eight AIAA Space Sciences and Exhibit, Reno, NV, 2001.
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• [7] Fu K., Knobloch A., Martinez F., Walther D., Fernandez-Pello A. C. Pisano A. and Liepmann D., “Design and Fabrication of a Silicon-Based MEMS Rotary Engine”, Proceedings of the 2001 ASME, IMECE, American Society of Mechanical Engineers, New York, November 11-16, 2001.
• [8] Yang W., “MEMS Free Piston Knock Engine”, Book of abstracts for poster presentation, Twenty-Eight International Symposium on Combustion, The Combustion Institute, Edinburgh, UK, July 30-August 4, 2000.
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• [10] Aichlmayr H. T., Kittelson D. B. and Zachariah M. R., Engineering Science, 57: 4161-4171, 2002.
• [11] Jarosinski J. and Podfilipski J., “Influence of Catalysis on Combustion in Spark Ignition Engine”, SAE Technical Paper Series, 2001-01-1338, 2001.